8.Design numbers rectangle structure September 01, 2011 4444 3333 2222 1111 pyramid it assignment Numbers rectangle pyramid numbers structure +
7.Design numbers rectangle structure September 01, 2011 4321 4321 4321 4321 pyramid it assignment Numbers rectangle pyramid numbers structure +
6.Design numbers rectangle structure September 01, 2011 1234 1234 1234 1234 pyramid it assignment Numbers rectangle pyramid numbers structure +